210203213 has 16 divisors (see below), whose sum is σ = 242403840. Its totient is φ = 180270000.

The previous prime is 210203177. The next prime is 210203243. The reversal of 210203213 is 312302012.

It is a happy number.

210203213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 210203213 - 2¹² = 210199117 is a prime.

It is a super-3 number, since 3×210203213³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210203243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50456 + ... + 54462.

It is an arithmetic number, because the mean of its divisors is an integer number (15150240).

Almost surely, 2^210203213 is an apocalyptic number.

It is an amenable number.

210203213 is a deficient number, since it is larger than the sum of its proper divisors (32200627).

210203213 is a wasteful number, since it uses less digits than its factorization.

210203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4288.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 210203213 is about 14498.3865654079. The cubic root of 210203213 is about 594.5838608011.

Adding to 210203213 its reverse (312302012), we get a palindrome (522505225).

The spelling of 210203213 in words is "two hundred ten million, two hundred three thousand, two hundred thirteen".